Diffusion Bonding of Al2O3 Dispersion-Strengthened 316L Composite by Gleeble 3800

Baross, Tétény and Ben Zine, Haroune Rachid and Bereczki, Péter and Palánkai, Miklós and Balázsi, Katalin and Balázsi, Csaba and Veres, Gábor (2024) Diffusion Bonding of Al2O3 Dispersion-Strengthened 316L Composite by Gleeble 3800. MATERIALS, 17 (10). No.-2300. ISSN 1996-1944

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Abstract

The aim of this work is to investigate the bonding properties of the ceramic dispersion-strengthened 316L (CDS-316L) composites with the reference 316L stainless steel (REF-316L) using a Gleeble 3800 physical simulator. In previous works, two different composites, REF-316L and 316L, with 1 wt% Al2O3 composite (CDS-316L) have been prepared by spark plasma sintering (SPS). In the present work, these specimens were diffusion-bonded using the following parameters: a temperature range of 950–1000 °C and a uniaxial pressure of 20–30 MPa. It was observed that the deformation of the CDS-316L during the uniaxial bonding process was higher compared to the 316L steel rods. The addition of alumina particles increased the micro-hardness of the 316L steel. The samples were broken in the CDS-316L zones, not at the diffusion-bonded interfaces. No diffusion zones have been observed within the investigated magnification for all composites, where the interfaces between the different specimens were well defined.

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